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Nr 410205 Hvdc Transmission

Code.No: 17017 NR SET-1 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD IV .B.TECH – I SEM SUPPLEMENTARY EXAMINATIONS JANUARY- 2010 HVDC TRANSMISSION (ELECTRICAL & ELECTRONICS ENGINEERING) Time: 3hours Max.Marks:80 Answer any FIVE questions All questions carry equal marks --1.a) b) 2. What are the different applications of HVDC transmission system? Explain them in detail. With neat sketches explain the different kinds of D.C links available. [8+8] Derive the expression for average DC volt

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  SET-1 NR Code.No: 17017 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABADIV .B.TECH – I SEM SUPPLEMENTARY EXAMINATIONS JANUARY- 2010HVDC TRANSMISSION(ELECTRICAL & ELECTRONICS ENGINEERING)Time: 3hours Max.Marks:80   Answer any FIVE questions   All questions carry equal marks   - - -  1.a) What are the different applications of HVDC transmission system? Explain themin detail.b) With neat sketches explain the different kinds of D.C links available. [8+8]2. Derive the expression for average DC voltages of a six pulse bridge converter,considering gate control and source reactance. [16]3. Write detailed notes on the followinga) Preductive commutation margin controlb) Equidistant firing control. [8+8]4. Explain in detail, the different configurations of static VAR system? [16]5. Write short notes on:a) Modelling of HVDC linksb) P.V system for d.c quantities. [8+8]6.a) State and explain why HVDC circuit breakers are not necessary in main poles of HVDC system.b) Sketch a complete single line diagram of DC side of HVDC substation andindicate various surge arresters. [8+8]7. Write short notes on two following:a) Telephone influence factorb) Harmonic distortion [8+8]8. Discuss the following filters:a) Doubled tuned filterb) High pass C type filter [8+8] -oOo-  SET-2 NR Code.No: 17017 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABADIV .B.TECH – I SEM SUPPLEMENTARY EXAMINATIONS JANUARY- 2010HVDC TRANSMISSION(ELECTRICAL & ELECTRONICS ENGINEERING)Time: 3hours Max.Marks:80   Answer any FIVE questions   All questions carry equal marks   - - -  1. Write detailed notes on the followinga) Preductive commutation margin controlb) Equidistant firing control. [8+8]2. Explain in detail, the different configurations of static VAR system? [16]3. Write short notes on:a) Modelling of HVDC linksb) P.V system for d.c quantities. [8+8]4.a) State and explain why HVDC circuit breakers are not necessary in main poles of HVDC system.b) Sketch a complete single line diagram of DC side of HVDC substation andindicate various surge arresters. [8+8]5. Write short notes on two following:a) Telephone influence factorb) Harmonic distortion [8+8]6. Discuss the following filters:a) Doubled tuned filterb) High pass C type filter [8+8]7.a) What are the different applications of HVDC transmission system? Explain themin detail.b) With neat sketches explain the different kinds of D.C links available. [8+8]8. Derive the expression for average DC voltages of a six pulse bridge converter,considering gate control and source reactance. [16] -oOo-  SET-3   NR Code.No: 17017 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABADIV .B.TECH – I SEM SUPPLEMENTARY EXAMINATIONS JANUARY- 2010HVDC TRANSMISSION(ELECTRICAL & ELECTRONICS ENGINEERING)Time: 3hours Max.Marks:80   Answer any FIVE questions   All questions carry equal marks   - - -  1. Write short notes on:a) Modelling of HVDC linksb) P.V system for d.c quantities. [8+8]2.a) State and explain why HVDC circuit breakers are not necessary in main poles of HVDC system.b) Sketch a complete single line diagram of DC side of HVDC substation andindicate various surge arresters. [8+8]3. Write short notes on two following:a) Telephone influence factorb) Harmonic distortion [8+8]4. Discuss the following filters:a) Doubled tuned filterb) High pass C type filter [8+8]5.a) What are the different applications of HVDC transmission system? Explain themin detail.b) With neat sketches explain the different kinds of D.C links available. [8+8]6. Derive the expression for average DC voltages of a six pulse bridge converter,considering gate control and source reactance. [16]7. Write detailed notes on the followinga) Preductive commutation margin controlb) Equidistant firing control. [8+8]8. Explain in detail, the different configurations of static VAR system? [16] -oOo-  SET-4   NR Code.No: 17017 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABADIV .B.TECH – I SEM SUPPLEMENTARY EXAMINATIONS JANUARY- 2010HVDC TRANSMISSION(ELECTRICAL & ELECTRONICS ENGINEERING)Time: 3hours Max.Marks:80   Answer any FIVE questions   All questions carry equal marks   - - -  1. Write short notes on two following:a) Telephone influence factorb) Harmonic distortion [8+8]2. Discuss the following filters:a) Doubled tuned filterb) High pass C type filter [8+8]3.a) What are the different applications of HVDC transmission system? Explain themin detail.b) With neat sketches explain the different kinds of D.C links available. [8+8]4. Derive the expression for average DC voltages of a six pulse bridge converter,considering gate control and source reactance. [16]5. Write detailed notes on the followinga) Preductive commutation margin controlb) Equidistant firing control. [8+8]6. Explain in detail, the different configurations of static VAR system? [16]7. Write short notes on:a) Modelling of HVDC linksb) P.V system for d.c quantities. [8+8]8.a) State and explain why HVDC circuit breakers are not necessary in main poles of HVDC system.b) Sketch a complete single line diagram of DC side of HVDC substation andindicate various surge arresters. [8+8] -oOo-